powerpc/booke64: Use appropriate -mcpu

By default use -mcpu=powerpc64 rather than -mtune=power7

Add options for e5500/e6500, with fallbacks for older compilers.

Hide the POWER cpu options in booke configs.

Signed-off-by: Scott Wood <scottwood@freescale.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 6930c935d292..32dfd5dc2be6 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -88,13 +88,22 @@ CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcmodel=medium,-mminimal-toc)
 CFLAGS-$(CONFIG_PPC64)  += $(call cc-option,-mno-pointers-to-nested-functions)
 CFLAGS-$(CONFIG_PPC32)  := -ffixed-r2 -mmultiple
 
+ifeq ($(CONFIG_PPC_BOOK3S_64),y)
 CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4)
+else
+CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64
+endif
+
 CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell)
 CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4)
 CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5)
 CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6)
 CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7)
 
+E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64)
+CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU)
+CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU))
+
 CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell)
 
 KBUILD_CPPFLAGS += -Iarch/$(ARCH)